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Polyphagia is not a disorder by itself; rather, it is a symptom indicating an underlying medical condition. It is frequently a result of abnormal blood glucose levels (both hyperglycemia and hypoglycemia), and, along with polydipsia and polyuria, it is one of the "3 Ps" commonly associated with uncontrolled diabetes mellitus. [2]
Overeating occurs when an individual consumes more calories in relation to the energy that is expended via physical activity or expelled via excretion, leading to weight gain and often obesity.
Hunger can also be a symptom of type 2 diabetes, where the body is resistant to insulin. Damage to the hypothalamus : This part of the brain helps regulate feelings of appetite and satiety.
Hunger is a sensation that motivates the consumption of food. The sensation of hunger typically manifests after only a few hours without eating and is generally considered to be unpleasant. Satiety occurs between 5 and 20 minutes after eating. [1] There are several theories about how the feeling of hunger arises. [2]
Despite the literal translation of anorexia, the feeling of hunger in anorexia nervosa is frequently present and the pathological control of this instinct is a source of satisfaction for the patients. [237] The term "anorexia nervosa" was coined in 1873 by Sir William Gull, one of Queen Victoria's personal physicians. [238]
Ghrelin (/ ˈ ɡ r ɛ l ɪ n /; or lenomorelin, INN) is a hormone primarily produced by enteroendocrine cells of the gastrointestinal tract, especially the stomach, [5] [6] and is often called a "hunger hormone" because it increases the drive to eat. [6] Blood levels of ghrelin are highest before meals when hungry, returning to lower levels ...
Starvation response in animals (including humans) is a set of adaptive biochemical and physiological changes, triggered by lack of food or extreme weight loss, in which the body seeks to conserve energy by reducing metabolic rate and/or non-resting energy expenditure to prolong survival and preserve body fat and lean mass.
Antibiotics in the first 6 months of life have been associated with excess weight at age seven to twelve years of age. [166] Because childhood obesity often persists into adulthood and is associated with numerous chronic illnesses, children who are obese are often tested for hypertension, diabetes, hyperlipidemia, and fatty liver disease. [96]